double

Adjective

• having two meanings with intent to deceive
  • a sly double meaning
    
  • spoke with forked tongue
    

• large enough for two
  • a double bed
    
  • a double room
    

• used of homologous chromosomes associated in pairs in synapsis

• used of flowers having more than the usual number of petals in crowded or overlapping arrangements
  • double chrysanthemums have many rows of petals and are usually spherical or hemispherical
    

• twice as great or many
  • ate a double portion
    
  • the dose is doubled
    
  • a twofold increase
    

• consisting of or involving two parts or components usually in pairs
  • an egg with a double yolk
    
  • a double (binary) star
    
  • double doors
    
  • dual controls for pilot and copilot
    
  • duple (or double) time consists of two (or a multiple of two) beats to a measure
    

• having more than one decidedly dissimilar aspects or qualities; public preaching and private influence"- R.W.Emerson
  • a double (or dual) role for an actor
    
  • the office of a clergyman is twofold
    
  • every episode has its double and treble meaning-Frederick Harrison
    

Adverb

• to double the degree
  • she was doubly rewarded
    
  • his eyes were double bright
    

• two together
  • some people sleep better double
    

• downward and forward
  • he was bent double with pain
    

Verb

• make or do or perform again
  • He could never replicate his brilliant performance of the magic trick
    

• bridge: make a demand for (a card or suit)

• do double duty; serve two purposes or have two functions
  • She doubles as his wife and secretary
    

• bend over or curl up, usually with laughter or pain
  • He doubled and vomited violently
    

• hit a two-base hit

• increase twofold
  • The population doubled within 50 years
    

Noun

• raising the stakes in a card game by a factor of 2
  • I decided his double was a bluff
    

• a quantity that is twice as great as another
  • 36 is the double of 18
    

• someone who closely resembles a famous person (especially an actor)
  • he could be Gingrich's double
    
  • she's the very image of her mother
    

• a stand-in for movie stars to perform dangerous stunts
  • his first job in Hollywood was as a double for Clark Gable
    

• a base hit on which the batter stops safely at second base
  • he hit a double to deep centerfield
    

Related words

• Synonyms: 
  forked , bivalent , doubled , twofold , two-fold , dual , duple , treble , threefold , three-fold , doubly , twice , duplicate , reduplicate , repeat , replicate , double over , double up , doubling , image , look-alike , stunt man , stunt woman , two-base hit , two-bagger , two-baser
• Antonyms: 
  multivalent , univalent , single